About: Switched-Capacitor Filter Optimization with Respect to Switch On-State Resistance and Features of Real Operational Amplifiers     Goto   Sponge   NotDistinct   Permalink

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Description
  • Tento článek popisuje optimalizaci filtru se spínanými kapacitory. Cílem optimalizace je prostřednictvím diferenciální evoluce získat požadovanou modulovou kmitočtovou charakteristiku filtru. Má být dosažen rovněž optimální dynamický rozsah. Optimalizace bere v úvahu jak jednu z vlastností skutečných spínačů - odpor v sepnutém stavu, tak vlastnosti skutečných operačních zesilovačů - konečné napěťové zesílení a konečnou šířku pásma. Ostatní hlavní vlastnosti skutečných operačních zesilovačů - vstupní a výstupní odpor - mají malý vliv. Nejprve je obvyklým způsobem navržen filtr s ideálními spínači a operačními zesilovači. Analýzou tohoto filtru se skutečnými spínači a operačními zesilovači je ukázán výrazný rozdíl mezi modulovou kmitočtovou charakteristikou jeho a s ideálními součástkami. Je proto použita optimalizace, aby se nalezly hodnoty součástek takové, s nimiž je modulová kmitočtová charakteristika co nejpodobnější té s ideálními součástkami. (cs)
  • The paper describes the optimization of a switched-capacitor filter. The aim of the optimization is to obtain a required magnitude frequency response of the filter by means of the differential evolution. An optimal dynamic range is to be achieved too. The optimization takes into account both one of the features of real switches - on-state resistance, and the features of real operational amplifiers - finite voltage gain and finite unity-gain bandwidth. Other main features of real operational amplifiers (input and output resistance) have small effect. The filter with ideal switches and operational amplifiers is designed by the usual way at first. The analysis of this filter with real switches and operational amplifiers shows a significant difference between its magnitude frequency response and the one with ideal components. Thus, the optimization is applied to finding component values for the response to be as similar to the one with ideal components as possible.
  • The paper describes the optimization of a switched-capacitor filter. The aim of the optimization is to obtain a required magnitude frequency response of the filter by means of the differential evolution. An optimal dynamic range is to be achieved too. The optimization takes into account both one of the features of real switches - on-state resistance, and the features of real operational amplifiers - finite voltage gain and finite unity-gain bandwidth. Other main features of real operational amplifiers (input and output resistance) have small effect. The filter with ideal switches and operational amplifiers is designed by the usual way at first. The analysis of this filter with real switches and operational amplifiers shows a significant difference between its magnitude frequency response and the one with ideal components. Thus, the optimization is applied to finding component values for the response to be as similar to the one with ideal components as possible. (en)
Title
  • Switched-Capacitor Filter Optimization with Respect to Switch On-State Resistance and Features of Real Operational Amplifiers
  • Switched-Capacitor Filter Optimization with Respect to Switch On-State Resistance and Features of Real Operational Amplifiers (en)
  • Optimalizace filtru se spínanými kapacitory s ohledem na odpor spínačů v sepnutém stavu a vlastnosti skutečných operačních zesilovačů (cs)
skos:prefLabel
  • Switched-Capacitor Filter Optimization with Respect to Switch On-State Resistance and Features of Real Operational Amplifiers
  • Switched-Capacitor Filter Optimization with Respect to Switch On-State Resistance and Features of Real Operational Amplifiers (en)
  • Optimalizace filtru se spínanými kapacitory s ohledem na odpor spínačů v sepnutém stavu a vlastnosti skutečných operačních zesilovačů (cs)
skos:notation
  • RIV/68407700:21230/07:03131782!RIV08-MSM-21230___
http://linked.open.../vavai/riv/strany
  • 34;39
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM6840770014)
http://linked.open...iv/cisloPeriodika
  • 2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 453748
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21230/07:03131782
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • switched-capacitor circuit (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [1D5A0ABB02A7]
http://linked.open...i/riv/nazevZdroje
  • Radioengineering
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 16
http://linked.open...iv/tvurceVysledku
  • Hospodka, Jiří
  • Dolívka, Lukáš
http://linked.open...n/vavai/riv/zamer
issn
  • 1210-2512
number of pages
http://localhost/t...ganizacniJednotka
  • 21230
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